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Prototype of Front-end Electronics for PandaX-4ton Experiment

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14 Jun 2018, 14:35

1h 30m

Woodlands Conference Center

Woodlands Conference Center

Speaker

MrShuwen Wang
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China;Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China)

Description

At the China Jinping Underground Laboratory, the PandaX-4ton ( Particle AND Astrophysical Xenon phase IV) in planning is a dark matter direct detection experiment with dual-phase Xenon. PandaX-4ton, compared to PandaX-II, has more readout channels and higher time precision requirements. Once incoming WIMPs (Weakly Interacting Massive Particles) collide with Xenon atom, prompt scintillation photons (S1) and delayed electroluminescence photons (S2) are collected by the PMTs, and then fed into front-end electronics which are introduced in this paper. In order to precisely obtain the wave and time information carried by the PMT signals, and to maximally cover the signal dynamic range, a high-gain preamplifier and an eight-channel digitizer with 14-bit resolution and 1 GSps sampling rate have been designed. Besides, the clock synchronization circuit within the digitizer is well-designed to align all the PMT channels. The digitizer also contains gigabit fiber to exchange data with trigger and data acquisition system. The performance of the front-end electronics can meet the requirements for the PandaX-4ton.

Speaker

Shuwen Wang

Description

FE board

Minioral

Yes

Country

China

Institute

USTC

Primary authors

Mr
Shuwen Wang
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China;Department of Modern Physics, University of Science and Technology of China, Hefei, 230026, China)
Dr
Zhongtao Shen
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China)
Mr
Keqing Zhao
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China)
Prof.
Changqing Feng
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China)
Prof.
Shubin Liu
(State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China)